baber/WOPTO huggingface dataset:
Patent CA-2091997-A1 (CA)
Title: Character recognition methods including locating and extracting predetermined and apparatus data from a document
Inventor: WUSTMANN GERHARD K
IPC: G06V10/20
Filed: 1991-09-26
Abstract: A method for automatically locating and recognizing amount data (10b) on a document (10) by scanning the document to first locate a particular symbol, such as a dollar sign "$" (10a), and then using the located "$" to determine the document area (10b-1, 10b-2) containing the amount data (10b) to be recognized. Elements of the "$" symbol and amount characters are extracted from a gray-level image (Fig. 5) using binary seed and mask images (Figs, 7, 8 and 10, 11) of different thresholds in a manner such that black pixels found in the higher threshold seed images are propagated in the lower threshold mask image to form connected components (Fig. 8, cc-1 and cc-2).
Patent CA-2092295-A1 (CA)
Title: Video coding and decoding method and apparatus for selecting between frame-based and field-based predictive modes
Inventor: IGARASHI KATSUJI
IPC: H04N19/573
Filed: 1992-07-28
Abstract: A method for coding/decoding and apparatus therefor. An encoder considers a frame representing a picture as comprised of areas. For each area, the encoder is capable of verifying and deciding: (1) which of the frame-based orthogonal transformation or field-based orthogonal transformation is more efficient for reducing spatial redundancy in a particular area of a picture, and (2) which of frame-based predictive coding or field-based predictive coding is more efficient for reducing temporal redundancy in that area. The most efficient orthogonal transformation technique is selected, and the most efficient predictive encoding technique is also selected to generate an encoded signal. The encoded signal is recorded on a recording medium, transmitted over a transmission channel, or broadcasted. A decoder at the other end decodes the encoded signal. Pictures containing a small amount of movement, pictures containing a great amount of movement, or mixed pictures containing a rapidly moving body on a still background may be reproduced with high efficiency.
Patent CA-2093206-A1 (CA)
Title: Biphasic release formulations for lipophilic drugs
Inventor: BARNWELL STEPHEN G
IPC: A61K47/12
Filed: 1991-10-18
Abstract: A pharmaceutical formulation comprises:   (a) a C12-C24 fatty acid, which may be saturated or mono- or poly-unsaturated, such as oleic or linoleic acid;   and (b) a generally lipophilic pharmaceutically active substance.    A portion of the C12-C24 fatty acid is formulated for non-sustained release on non-parenteral administration and a portion of the C12-C24 fatty acid and at least a portion of the pharmaceutically active substance are formulated for sustained release on non-parenteral administration.      The pharmaceutically active substance may be a cardiovascular drug such as propranolol, verapamil, nifedipine, diltiazem, metoprolol, nicardipine or labetolol. Such formulations promote absorbtion redistribution of the active substance(s) from the hepatic portal blood supply to the lymphatic system, thereby avoiding first-pass liver metabolism.    Formulations of this type will have a predictable dose response in patients, achieved with a lower chemical load, with which therapeutic efficacy is maintained.
Patent CA-2093635-A1 (CA)
Title: Magnetron sputter coating method and apparatus with rotating magnet cathode
Inventor: HURWITT STEVEN D
IPC: C23C14/35
Filed: 1991-10-16
Abstract: A target (40), of a thick-ness that varies across its radius according to the amount of ma-terial required to be sputtered, is supported in a nest (42) in a chamber (10) of a sputter coat-ing apparatus. A closed loop permanent or electromagnet strip (80), preferably a flexible permanent magnet, is fixed to a magnet carrier (55) that rotates behind the nest about the target center axis. Portions of the magnet are near the rim of the target and portions are near, but not on, the target center.   One pole of the magnet faces the target rim and one faces the target center axis so that its field will enclose the target rim within a magnetic tunnel that traps a plasma over the target. Lumped magnets (90, 91, 92) across the center from the strip support the plasma near the center so as to cause some sputtering at the target center. Other lumped magnets (95, 96, 97, 98) adjacent the strip help sharpen the field so that a desired distribution of sputtering can be achieved. Enclosed in a sealed space (44) behind and in thermal contact with the target nest is the carrier from which the magnets project to facilitate the flow of cooling fluid across the back surface of the nest to cool the target as the carrier rotates.
Patent CA-2099616-A1 (CA)
Inventor: RICHTER SIMON J
IPC: B65D23/10
Filed: 1991-12-17
Abstract: ABSTRACT A syrup container system for post-mix beverage dispensing systems comprising filling a blow molded, multi-layer PET container (10) with syrup (48) and connecting the container to a post-mix beverage dispenser (12) through a syrup pump (15).  The PET container includes a release agent such as a layer of EVOH (44) located outside of the inner PET layer (42) and an air vent (38) partway through the container wall terminating at the inner PET layer (42) or at the adjacent release layer, so that the inner PET layer (42) can separate from the remainder of the wall and collapse around the remaining syrup as it is withdrawn, without the need for venting the syrup chamber to atmosphere.  The PET container (10) also includes a polyethylene closure sealing the container opening and coupling means for connecting to a quick-disconnect coupling on the distal end of a syrup line.  The PET container is disposable and recyclable.
Patent CA-2101363-A1 (CA)
Inventor: RINTOUL DAVID J
IPC: B21B1/46
Filed: 1993-07-27
Abstract: ABSTRACT    A method and apparatus is disclosed for producing thin hot rolled metal sheet and strip.  A slab of heated metal is rolled through a finishing mill to a first thickness such that it will not become airborne on a runout table following the finishing mill.  When a predetermined amount of rolled metal is produced at the first thickness, the roller gaps in the finishing mill are adjusted to reduce the rolled metal thickness to its desired final thickness at which it normally would become airborne on the runout table.
Patent CA-2102152-A1 (CA)
Title: Pyrrole thiocarboxamide insecticidal and acaricidal agents
Inventor: HENEGAR KEVIN E
IPC: C07D409/12
Filed: 1993-11-01
Abstract: PYRROLE THIOCARBOXAMIDE INSECTICIDAL AND            ACARICIDAL AGENTS     ABSTRACT OF THE INVENTION There  are provided pyrrole  thiocarboxamide compounds which are useful for the control of insects and acarina. Further provided are compositions and methods comprising those compounds for the protection of plants from attack by insects and acarina.
Patent CA-2104406-A1 (CA)
Inventor: TSURUSAKI MASAYUKI
IPC: H04M3/02
Filed: 1993-08-19
Abstract: A bell signal generating circuit for a key telephone set. A dc component of a pulse signal is removed by a photo-coupler to generate a first signal. A high frequency component of the first signal is removed by a filter to generate a second signal. A differential amplifier amplifies the second signal to generate a bell signal. To the differential amplifier, a dc supply voltage based on the dc signal in synchronism with the pulse signal is applied.
Patent CA-2107207-A1 (CA)
Title: Marine compositions bearing preferentially concentrated domains of non-tin, organo anti-fouling agents
Inventor: MCGINNISS VINCENT D
IPC: C08K5/00
Filed: 1992-05-14
Abstract: The present invention is addressed to a curable, marine anti-fouling composition of a thermoplastic or thermosetting binder, solvent, non-tin, organo anti-fouling agent, and optionally conventional additives, e.g. leaching agents, opacifying pigments, etc. The anti-fouling agents are found in preferentially concentrated domains (hereinafter, often referred to as ''PCD'') in the cured compositions. The PCDs can be termed non-homogeneous, phase-separated, or incompatible in the system. The art term used in describing the PCDs of anti-fouling agent is not limitative of the invention as the disclosure herein will demonstrate. Preferably, PCDs are created by forming an oligomeric adduct of the anti-fouling agent which adduct is formed into PCDs upon the curing of the composition. Additional techniques for forming PCDs of anti-fouling agent are revealed herein. The present invention also is addressed to new, low toxicity anti-fouling agents which comprise pesticide or herbicide compounds having a $g(x) factor of between about 0.01 and 3, a Z value for vinyl or aromatic compounds of between about 0.01 and 0.08, and an LD50 value of greater than 200 mg/kg against rats or mice. Such pesticide or algicide compounds broadly can be selected from heterocyclic compounds, aromatic compounds substituted with heteroatom substituents, various amino compounds, carbocyclic vinyl ether ketones, certain phospho compounds, certain polychlorinated carbocyclic and acyclic compounds, certain chlorinated carbocyclic carboxylates, antimony tartrate, boric acid, and cupric oleate.
Patent CA-2113522-A1 (CA)
Inventor: CROUSER DARWIN S
IPC: A47L5/00
Filed: 1994-01-14
Abstract: The present invention teaches a utility, wet/dry, tank type, vacuum cleaner suitable for domestic use whereby wet or dry material may be alternately vacuumed. Two storage or receiving chambers are provided, preferably positioned one within the other. Two suction inlets, one communicating with the first chamber and the other communicating with the second chamber are provided such that wet and dry material may be selectively directed, by the user, to the appropriate chamber for collection.
Patent CA-2115440-A1 (CA)
Inventor: SAMUELSON BRUCE E
IPC: B65H37/00
Filed: 1992-08-07
Abstract: A definite length transfer adhesive dispenser for applying predetermined lengths of a tranfer adhesive to a substrate is disclosed. A supply roll of the transfer adhesive comprising a supply core, and a length of backing strip wound around the core is also disclosed. The transfer adhesive dispenser comprises a housing having a base wall, side walls, an open end, inner and outer surfaces, and a supply roll hub. The dispenser includes a mechanism for restricting free rotation of the supply roll about the hub. A  take-up assembly is present comprising a take-up hub and a take-up core. The take-up core rotates about the take-up hub in an advancing direction. Path structures define a path for the backing strip from the supply roll hub to the take-up hub. An application mechanism is present comprising an application member including an application surface which forms a length of the path for the backing strip. An actuation member having a distal surface is mounted for manually actuated reciprocal movement relative to the housing between (1) a projecting position with a distal surface projecting past an open end of the housing to afford positioning the application surface opposite a substrate and (2) a retracted position with the application surface and the distal surface of the actuation member generally aligned so that the predetermined length of transfer adhesive on the backing strip may be pressed into contact with the substrate positioned opposite the application surface.  An advancing mechanism is coupled between the actuation member and the take-up assembly for advancing the predetermined length of the backing strip and the transfer adhesive along the path.
Patent CA-2119887-A1 (CA)
Title: Inhaler for aerosol medications
Inventor: BISHOP KEITH H
IPC: A61M13/00
Filed: 1992-09-24
Abstract: Apparatus for dispensing medication from an aerosol container, the apparatus having an inlet (24) for receiving pressurized fluid and an extension of the inlet which forms a receiving chamber (28). A wall section of the receiving chamber is an extension of an inlet wall, another wall section being connected to an inlet wall by an oblique segment (36), so that the receiving chamber has a smaller cross-sectional width than, and a centerline which is displaced from, those of the inlet. The receiving chamber contains a rod-like projection (26) extending upward along the chamber centerline, and a conduit (32) for transmitting pressurized fluid from the receiving chamber to a fluid stream duct (20).
Patent CA-2120524-A1 (CA)
Title: Polyurea-reinforced fiber-based materials
Inventor: TIEDEMAN GEORGE T
IPC: D21H17/52
Filed: 1992-09-28
Abstract: Polyurea-reinforced fiber-based materials, and methods for their manufacture, are disclosed. A representative material is a sheetlike ply having on one or both faces thereof a polyurea-impregnated stratum. When the material has only one such stratum, the stratum has a thickness extending depthwise into the ply no greater than about half the ply thickness dimension. When the material has two such strata (one on each face), each stratum has a thickness no greater than about one-third the ply thickness dimension. In either case, a portion of the ply thickness dimension is unimpregnated. The material can comprise plural superposed plies, such as reinforced corrugated paperboard wherein at least one ply, such as the corrugated medium, has at least one polyurea-impregnated stratum. The present materials have, at a given compression strength, less brittleness (more foldability) than prior-art materials.  The present materials are made by controllably applying a polyisocyanate resin to a fibrous web surface so as to prevent excess penetration of the resin into the web thickness dimension, then curing the resin. The materials are capable of being corrugated and folded after curing, and are useful for manufacturing cartons and other finished products.
Patent CA-2120584-A1 (CA)
Title: Compositions consisting of hydrogenated fluorocarbons
Inventor: BASILE GIAMPIERO
IPC: C07C19/08
Filed: 1994-04-05
Abstract: ABSTRACT          COMPOSITIONS CONSISTING OF HYDROGENATED FLUOROCARBONS.          Nearly azeotropic  compositions  consisting of  hydrogenated fluorocarbons, suitable as freezing mixture in conditioning plants, essentially consisting of:          (A)  from 38 to 53% by weight of R22; (B)  from 34 to 56% by weight of R124 and/or R124A;          (C)  from  2 to 13.5% by weight of R600 and/or R600A.
Patent CA-2121493-A1 (CA)
Title: Bacterial expression vectors containing dna encoding secretion signals of lipoproteins
Inventor: STOVER CHARLES K
IPC: A61P31/04
Filed: 1992-10-21
Abstract: An expression vector for expressing a protein or polypeptide in a bacterium, which comprises a first DNA sequence encoding at least a secretion signal of a lipoprotein, and a second DNA sequence encoding a protein or fragment thereof, or polypeptide or peptide heterologous to the bacterium which expresses the protein or fragment thereof, or polypeptide or peptide. The bacterium expresses a fusion protein of a lipoprotein or lipoprotein segment and the protein or fragment thereof, or polypeptide or peptide heterologous to the bacterium which expresses the protein or fragment thereof, or polypeptide or peptide. Such expression vectors increase the immunogenicity of the protein or fragment thereof, or polypeptide or peptide by enabling the protein or fragment thereof, or polypeptide or peptide to be expressed on the surface of the bacterium. Bacteria which may be transformed with the expression vector include mycobacteria such as BCG. The expression vectors of the present invention may be employed in the formation of live bacterial vaccines against Lyme disease wherein the bacteria express a surface protein of Borrelia burgdorferi, the causative agent of Lyme disease.
Patent CA-2122038-A1 (CA)
Title: Methods for treating the heart
Inventor: VERRIER RICHARD L
IPC: A61N1/30
Filed: 1992-10-23
Abstract: A method for placing various types of catheters into the pericardial space takes advantage of the fact that the right auricle is a thin-walled, low-pressure structure which can be readily penetrated without damaging the pericardium or the epicardium. The method avoids surgical trauma and the risks of general anesthesia and infection. A catheter (202) is guided downstream through one of the venae cavae (204) to the right atrium (110). Once inside the right atrium (110), the catheter is passed into the right auricle (108). The wall at the apex (112) of the right auricle (108) is then pierced to gain access to the pericardial space (106). The method can be used to provide electrical stimuli to the heart, to pick up an ECG signal, to deliver pharmacologic agents to the heart, to improve vascularization, to remove pericardial fluid for analysis or pericardiocentesis, or to inject a radio-labelled or echo-sensitive dye into the pericardial space for precision fluid imaging.
Patent CA-2122257-A1 (CA)
Title: Preparation of substantially dust-free tetrayhdro-3,5- dimethyl-1,3,5-thiadiazine-2-thione granules
Inventor: APPLER HEINZ
IPC: A01N43/88
Filed: 1992-12-15
Abstract: Described is a method of producing tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thion powder (I) substantially free of dust fines by reacting methylamine (II) with carbon disulphide (III) and formaldehyde (IV) or by reacting the methylammonium salt of N-methyldithiocarbamic acid (V) with formaldehyde (IV), characterized in that the reaction is carried out in the presence of at least one diaminoalkylene of the formula (VI): R1-NH-A-NH-R2, in which R2 and R2, independently of each other, are hy-drogen or an alkyl group and A is an optionally substituted 1,2-ethylene, 1,3-propylene or 1,4-butylene bridge.
Patent CA-2122695-A1 (CA)
Title: Foamable oil well-treatment-fluid
Inventor: DAMS RUDOLF J
IPC: E21B43/32
Filed: 1994-05-02
Abstract: Abstract A foamable, oil well treatment fluid comprising at least one fluorochemical surfactant that is:   a)  substantially soluble in crude oil, and b)  substantially insoluble in water, wherein the fluid is capable of forming a foam barrier under typical oil well conditions that is effective in reducing gasconing for at least four days.
Patent CA-2122909-A1 (CA)
Title: Mounting devices
Inventor: HEARD ROBERT ARTHUR HENDERSON
IPC: G09F7/18
Filed: 1992-11-12
Abstract: 2122909 9310517 PCTABS00022 An elongate reinforcing member (11) for a sign panel (10), having in cross section a foot portion (16) for securing to the rear face of a sign panel (10) and a head portion (12) having a dove-tailed slot (33) for engagement with a trapezoidal shaped head at the end of a strap for passing around a supporting post. A sign is formed from a plurality of panels (10a, 10b) abutted edge-to-edge. A main elongate reinforcing member (11) has in cross section a transverse head (12) for attachment thereto of amounting device for the sign, and a depending leg (14) terminating in an offset foot (16) secured to the rear of a first said sign panel (10a) adjacent an abutting edge of said panel. An elongate co-operating member (21) has a generally L-shaped cross section comprising a foot portion (22) secured to the rear of an adjacent second said sign panel (10b) at the edge abutting the first panel (10a) and an upright portion (24) abutting the leg of the main reinforcing member. One of the reinforcing members has a flange (20) at the foot projecting into a recess (28) in the foot portion of the other reinforcing member (21). The head (12) of the reinforcing member is offset with respect to the leg (14) on the opposite side from the projection of the foot (16), to expose the foot for rivetting to the plate.
Patent CA-2123441-A1 (CA)
Inventor: GALAND CLAUDE
IPC: H04L12/56
Filed: 1994-05-12
Abstract: The object of the invention is to perform an automatic decomposition of a packet switching network in backbone nodes and subareas nodes to speed up the routing path search without degrading the optimization criterion of the routing algorithm and without generating additional control messages on the network. Currently, routing algorithms compute all the available paths in the network, from the source node to the destination node before to select an optimal route. However, networks are rarely fully meshed. They are usually built around a hierarchical structure : a set of nodes, interconnected by high throughput lines, are used to build a backbone with a high degree of meshing and then, local nodes are grouped in geographical subareas themselves attached to the backbone. Routing algorithms can take advantage of this particular network topology to drastically reduce the complexity of paths computation. For a given connection, only a limited number of nodes are defined as usable and are taken in account by the algorithm in its path calculation. <IMAGE>
Patent CA-2125542-A1 (CA)
Title: Oral composition containing salicylanilide antibacterial agent
Inventor: NABI NURAN
IPC: A61K8/42
Filed: 1994-06-09
Abstract: ORAL COMPOSITION CONTAINING SALICYLANILIDE ANTIBACTERIAL             AGENT                    ABSTRACT   An antiplaque oral composition such as a gel, paste or mouthrinse which is comprised of a vehicle having incorporated therein as the antiplaque agent an effective amount of an antibacterial salicylanilide compound and a surfactant mixture of an anionic surfactant, a polyoxyethylene/polyoxypropylene block copolymer and a taurate salt, the pH of the composition being adjusted to a pH of at least 8Ø An antibacterial-enhancing agent such as an anionic polymeric polycarboxylate which enhances the delivery of the salicylanilide compound to and retention on oral tissue surfaces is optionally incorporated in the composition to improve the efficacy of the salicylanilide compound.
Patent CA-2127263-A1 (CA)
Title: Method and apparatus for processing images
Inventor: COHEN NATHAN
IPC: G01B11/00
Filed: 1992-12-30
Abstract: A method and apparatus for reducing noise and enhancing the dynamic range of an image data set gather from an array (12) of transducers (T). The method includes the step of processing the image data set in a digital computer (17) by a noise reduction technique, such as deconvolving the noise component by means of a CLEAN or other algorithm. Thereafter the artifact image data introduced by the noise reduction technique is reduced by masking the processed image data set with the original image data set. This masking is done by multiplying each data value in the processed image data set by the corresponding data value in the original image data set. The method further includes scaling and normalizing the masked data and finally displaying the same on an image display device (42). Additionally, for imaging apparatus (10) not having a cross-correlator (16), phase aberration is reduced by performing a coordinate transformation step prior to noise reduction using a non-standard set of coordinate transformation algorithms.
Patent CA-2128028-A1 (CA)
Inventor: JEROMSON JEFFREY T
IPC: H01H9/28
Filed: 1993-06-10
Abstract: A rotary valve (10) with a latching/locking operating handle assembly (14) includes a valve body (16) carrying a rotary valve element (24) having an outwardly extending valve stem (34). A main handle body (40) is joined to the stem (34) and provides guide grooves (46, 48) for cooperating first and second operating members (50, 56) connected by a cam assembly (60, 62, 62a) such that selective horizontal movement of the first operating member (50) produces vertical movement of the second operating member (56). A latch pin (58) carried by the second member (56)is thereby caused to move between engaged and  disengaged positions with the valve body (16).
Patent CA-2128679-A1 (CA)
Title: Trimmer Blower and High Capacity Waste Bin
Inventor: STANDING ROBERT C
IPC: G03G15/00
Filed: 1994-07-22
Abstract: A signature booklet making apparatus for an electrophotographic printing machine, the booklet making machine having a trimmer blade blower and high capacity waste bin. Selectively operable air ducts are provided to distribute an airflow either across the trim blade to remove trim scraps or through a bypass duct to efficiently fill the waste bin with scrap. A valving mechanism responsive to the operation of the trimmer directs the airflow to the correct duct. By selectively causing the air to flow across the trim blade the chance of forcing thin booklets into the waste chute thereby causing jams is minimized.